Brake.



C. S. PEETS & 0. D. SHONNAHD.

' BRAKE.

APPLICATION FILED OCT-19.19l7.

1,300,003. V Patented Apr. 8,1919.

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CLIFFORD 5. Peers awvawtom and ORLHNDO D SHONNHRD,

C. S. PEETS & 0. D. SHONNARD.

BRAKE.

APPLICATION FILED OCT. I9. 19!].

Patentd Apr. 8,1919.-

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C. S. PEETS & 0. .D. SHONNARD.

BRAKE.

APPLICATION FILED oer-19.1911.

Patented Apr. 8,1919.

4 SHEETS-SHEET 3.

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UNITED STATES PATENT OFFICE.

CLIFEORE S. PEETS, OF GREAT NECK STATION, NEW YORK, AND ORLANDO D. SHONNABD, OF MONTGLAIR, NEW JERSEY, ASSIGNORS OF TWO-THIRDS TO SAID ORLANDO D. SHONNARD AND ONE-THIRD TO HAROLD W. SHONNAIBD, OF UPPER MONTCLAIR,

NEW JERSEY.

BRAKE.

Application filed October 19, 1917. Serial 1fl 'c. 197,412.

To all whom it may concern: 9

Be it known that we, CLIFFORD S. Pnn'rs and ORLANDO D. SHONNARD, citizens of the United States, residents of Great Neck Station, Nassau county, State of New York, and Montclair, Essex county, and State of .New Jersey, respectively, have invented oer tain new and useful Improvements in Brakes, of which the following is a specification.

This invention relates in general to brakes and more particularly to means for effectively braking the wheels of vehicle members pivotally connected to one another.

With one type of auto truck heretofore in use there is provided one vehicle member, which comprehends the driving member of a truck, to which vehicle member a'trailer is pivotally connected. Among the main objects of the present invention it is aimed to provide means that will effectively brake the wheelsof such trailer.

Another object of the present invention is the provision of brake means for simultaneously and effectively braking both the wheels of the trailer and the wheels of the tractor of an auto truck to which such trailer is pivotally connected.

Another object of the invention is to provide means for the instantaneous transmission of motion from a brake controller or the like placed on a tractor to brake. shoes or the like placed on a trailer, when the tractor and trailer are so connected to each otheras to permit the two vehicles to rock about a. horizontal axis, to move about a vertical axis, and to have a flexible fore and aft movement in rehation to each other. The intervening transmitting mechanism between the brake controller and the brake shoes is of such a nature that the brake shoes always remain instantaneously responsive to actuation of the brake controller and will not be automatically actuated by any change in the relative positions of the .two vehicles. In other words while the brake shoes are at all times instantaneously responsive to actuation of the brake controller, neither the brake controller nor the brake shoes will at anytime be actuated by road variances (causing rocking motion about the horizontal axis of the coupling) or by turning around (causing movement about the vertical axis of the coupling) or by starting up or stopping, (causing fore and aft 'movement of the two vehicles.) The fore and aft movement of the two vehicles referred to has reference to the draw-bar action between a tractor and a trailer, provided in certain well known types of coupling for connecting tractor and trailer vehicles-to each other, and permits the'tractor to get into motion before the load on the trailer is felt by the motor. This feature also softens the stresses of the load against the tractor in stopping. This relative movement of the two vehicles is permitted in an outfit" equipped with our improved braking mechanism without disturbing the connection between the brake lever on the tractor and the brake shoes on the trailer, whereby the shoes are always instantaneously responsive to movement of the brake lever.

It is a further object of this invention to provide brake shoes for .the tractor vehicle,

as well, adapted to be operated simultaneously with the brake shoes on the trailer when it is desired to apply or release the brakes, but remaining unactuated by the relative movement of the two vehicles as recited above.

As a special feature the present invention contemplates the provision of brake-controlling means for the wheels of. a trailer, the manipulating means of which are disposed on the tractor to which the trailer is pivotally connected, and connecting means which pass through the pivotal connection between the tractor and trailer.

The invention further contemplates the provision of means for anchoring the braking means of the trailer in braking position when the trailer is separated from the tractor.

These and other features, capabilities and advantages of the invention will appear from the subjoined, detail description of one specific embodiment thereof illustrated in the accompanying drawings, in wh1ch,-.

Figure 1 is a perspective showing a tractor in full, with a portion of a trailer connected thereto;

- Fig. 2, is a, fragmental elevation-of a detached with which the F ig. 4 is an enlarged plan of a fifth wheel present invention finds particular adaptation;

Fig. 5 is a section on the line 55 of Fig. 4;

Fig. 6v is a section on the line 66 of Fig. 4;

Fig. 7 is a section of certain of the elements constituting the present invention separated from one another;

Fig. 8 is a plan showing the fifth wheel equipped with certain brake-controlling means;

Fig. 9 is an elevation partly in section showing the fifth wheel equipped with certain of the brake-controlling means;

Fig. 10 is an elevation of the brake drum of a trailer wheel.

In the embodiment illustrated there is shown one vehicle member, the tractor 11 formed from a Ford car in which the chassis is extended and provided with an additional rear shaft on which the wheels 13 are mounted and connected by the s rocket chain l4 with the drive shaft 15, whlch for merly was the rear wheel shaft of the Ford car. On the rear portion of the chassis is mounted a pivotal member, in the present instance a fifth wheel 16, the mounting parts of which are of standard construction comprising essentiall the bearing brackets 17 fixed to the chassls 12 and pivotally mounting the tubular shaft 18 along the horizontal axis of said pivotal members. The shaft 18 essentially embraces the two tubular end members 19, which are screw-threadedly connected to the center pins 20, having. an

enlarged central cylindrical portion 21. In-

side of and adjacent to the bearing brackets 17 the blocks 22 are secured to the tubular members 19, which blocks are slidably mounted in the housings 23, the sliding movement of which is limited and bufi'ed by the spring members 24 mounted between said housings and blocks in a well-known manner.

The housings 23 are formed on the lower spider member 25 having an upper annular bearing surface 26 On which is positioned the annulus 27 which is secured to the crosspiece 28. The cross-piece 28 has a medial enlargement 29, provided with a downward extending portion 30 through the central opening 31 of which a vertically reci rocable member, the pin 32, is mounted. he vertical axis'of the cross-piece 28 and thereconnected parts pass substantially through the openingv 31. The downwardly extending portion 30 is provided with an annular recess 33 to receive the bifurcated end 34 of a horizontally reciprocable member, the locking bar 35 which is slidably mounted on the bearings 36and 37 formed on the lower side of the spider member 25.

The bar 35 is provided with an inner shoulder 38 to limit the outward movement of the bar 35 and an outer shoulder 39 to define the inward movement of the bar 35. To maintain the shoulders 38 and 39 of the bar 35 in coiiperative relation with the bearings 36 and 37 the laminated spring 40 is formed on the lower outer end of the spider 25 and bears against the upper outer end of the bar 35, while theupper inner end of the bar 35 is preferably enlarged to engage the central portion 41 of the spider member 25. For manipulating the bar 35 the downwardly extending handle portion 42 is provided. The portion 41 of the spider member 25 is provided with a central opening 42 to receive the extension 30, and the recess 33 is so-disposed relatively to the lower surface of the portion 41 that, when the cross-piece 35- and extension 30 are in position on the spider 25, the bifurcated end 34 of the bar 35 may nicely slide into such recess 33. By means ofthis locking bar 35 and extension 30, as formerly, the annulus 27, which is secured to the trailer hereinafter to be described, will be anchored to the spider 25 which is connected to the tractor 11. In the present instance the annulus 27 is secured to the housing 43 formed on the lower side of the end of the trailer'member 44.

The other vehicle member to be pivotally connected to' the tractor is, in the present instance, trailer member 44, which ,is provided near its rear end with a wheel shaft 45 on which the wheels 46 are mounted and brake drums 47 adjacent thereto, in which are disposed the brake bands 48, Fig. 10, which are pivotally connected at 49 and have wedge engaging ends 50 at their other ends for cooperating with the wedge member 51, the bands 48 being normally maintained in non-braking position by the spring 52. They wedge member is secured to the lever 53 which is fulc'rumed at 54 and has its lower end pivotally connected to the rod 55 for manipulating the same. The wheels 13 of the tractor are also provided with brakedrums 56, as usual, an suitable brake bands (not shown) which are pivotally connected to the link 57, Fig. 3.

The brake mechanism now to be described, particularly for controlling the brakes of the trailer wheels, constitutes the main elements of the present invention. Adjacent to the drivers seat on the tractor, as usual, is for-med the brake-controlling lever 58,

fulcrumed at 59 to the chassis 12 and piv- -1 the brake will ment of saidoperating means, be directly applied irrespective of the relative positions ofsaid tractor and trailer.

2. The combination with a tractor and a trailer, of means for pivotally connecting on a vertical axis saidtrailer to said tractor, said pivotal connection including means permitting relative longitudinal movement between the trailer and tractor, a brake for the trailer, means on said tractor for operating said brake, and rigid connections extending from said brake-operating means through said pivot axis to said brake for actuating the brake whereby the brake will respond instantaneously to the movement of the brake-operating means irrespective of the relatlve positions of the tractor and trailer.

.3. The combination with a tractor and a trailer, of means for pivotally connecting said trailer to said tractor for relative vertical and horizontal movements, a brake on the trailer, means on the-tractor for operating said brake, and connections extendin from .said brake-operating means to said trailerbrake for actuating the latter, said connections passin through said pivotal connection and inc uding a rigid member reciprocable in a line parallel to one of the axes of said pivotalconnection.

4. The combination with a tractor and a trailer, of means for pivotally connecting said trailer to said tractor for relative vertical and horizontal movements, said pivotal connection including means permitting relative longitudinal movement between the tractor and trailer, a brake for the trailer, means on the tractor for operating said brake and connections extending from said brake-operating means to said trailer brake for actuating the latter, said connections including a rigid member passing through said pivotal connection whereby said brake may by the movement of said operating means be directly applied irrespective of the relative positions of the tractor and trailer.

5. The combination of a tractor and trailer connected to each other to have relative movement fore and aft and about' a horizontal axis, a brake for the trailer, operating means therefor disposed on the tractor, and means passing through the connection of the two vehicles to each other whereby always respond instantaneously to actuation of the brake operating means irrespective of the relative positions of the two vehicles.

6. The combination of a tractor and a trailer connected to each other to have relative movement including movement about a horizontal axis, a brake for the trailer, oper ating means therefor disposed on the tractor, means for connecting the brake to its operatin means including a reciprocable memb r passing through the connection of the two Y operatively vehicles to each other, will always respond instantaneously to its operating means irrespective of the relative positions of the two vehicles. 7. The combination with two vehicle members mounted on wheels respectively, a connection for pivotally and removably connecting the vehicle members to one another, brakes for the wheels on one of said vehicle members, means for controlling said brakes disposed on said other vehicle member, and means for retaining said brakes in braking position when the vehicle members are separated from one another. 7

8. The combination with two vehicle members mounted on wheels respectively, a connection embracing both a vertical axis of movement and a horizontal axis of movement for connecting the vehicle members with one another to pivot relatively to one another about the axes of said connection, a bar mounted to reciprocate through said horizontal axis, a pin mounted to recipro cate through said vertical axis and operatively connected to said bar, brakes for the wheels of one of said vehicle members, control means on the other of said vehicle members, means for connecting said brakes with said reciprocable pin, and means for connecting said control means with said reciprocable bar so as to actuate said bar to in turn actuate said pin to-actuate said brakes.

9. The combination with two vehicle members, mounted on wheels respectively, a connection for pivotally and separably connecting said vehicle members to one another, a reciprocable member passing through the axis of said pivotal connection, brakes on the wheels of one of said vehicle members,

member, control means on the other of said vehicle members operatively connected to actuate said reciprocable member to in turn. actuate said brakes, and connections for retaining said reciprocable member in braking position when said vehicle members are separated from one another.

10. The combination with two vehicle members mounted on wheels respectively, a pivotal connection for. connecting said vehi cle members to one another, means for an-. choring said otal relation to one another, a reciprocable member passing through the axis of said pivotal connection, brakes on the wheels of one of saidvehicle members operatively con nected to said reciprocable member, control means on the other of said vehicle members operatively connected to actuate said reciprocable member to in turn actuate said brakes, and means for retaining said reciprocable member in braking position when said vehicle members are separated from one another, said anchoring means when disvehicle members in such piv-v whereby the brake 5 connected to said reciprocable nected.

The bell-crank lever 61 has a bifurcated end 63 to coiiperate with the collar members 64 and 65 secured to the outer end of the reciprocable bar 66, which is reciprocably mounted in the tubular member 18- having an upper recessed portion 68 disposed to reciprocate inside of the cylindrical portion 21, such recessed portion having a cam surface 69, on which the rod 70 is adapted to ride, an upper shoulder 71, against which the lateral 'side of the block 7 2 is adapted to abut, and a lower-shoulder 73 against which the rod 70 is adapted to abut when the block 72 and rod 70 are disposed in their lower or non-brakin position. For maintaining the block 7 2, w ich forms a cam for the pin 32, in position so that the lower end of the pin 32 may cotiperate therewith, the rod 70 is slidably mounted in the slots or guide-ways 74 formed in the cylindrical portion 21.

The cylindrical portion 21 is also provided with elongated slots 7 5 to permit the passage therethreugh of, and to guide, the bar 66. The pin 32 is provided with an enlargement 76 formed near its upper end, which is of. greater diameter than the opening 31 in the central portion 29 so as to cooperate with the upper recessed portion of the central portion 29' to limit the downward movement of such pin 32. The upper end of the pin 32 is adapted to cooperate with the recess 7 7 in the free arm 78 of the bell-crank lever 7 9 fulcrumed to the bearing brackets 80, which properly guide the bellcrank lever? 9 in its actuation. The upperv end of the bell-crank lever 79 is pivotally connected to the connecting rod 81 which extends through the opening formed in the housing 43 down to and pivotally connected to the cross-rod 82 which is secured to the lower ends of the levers 83 fulcrumed to. the brackets 84 attached to the lower side of the trailer member 44. The rod 82 has pivotally connected thereto the rods 55 which, as already described, are pivotally connected to the levers 53 to operate the brake bands 48. C

' From the foregoing it is obvious that as the controlling lever 58 is actuated, the brake bands of the trailer wheels will be actuated no matter what position the trailer may have relatively to the tractor, or what swinging movement the trailer may have relatively to the tractor at the time. In. the

illustrative embodiment of our invention,

this result, as far as concerns the pivotal connections of the trailer to the tractor, is accomplished by the rigid reciprocable members passing through the pivotal axes. To compensate for the fore and aft or relative longitudinal movement of the tractor and trailer, the block 72 has an extended bearimmediately snap ing face on which the lower end of the pin 32 bears. At the same time through the connection of the rod 60 with the brake bands of the tractor wheels 13, the brakes for such wheels 13 will also be actuated.

For anchorin the brake-bands 48 in braking position w en the trailer is removed from the tractor, there is provided a latch having an upper arm 87 or engaging the lower cam faced surface of the enlargement 76 and a lower arm 88 which'is normally maintained in outward position by the spring 89 formed adjacent to the inner side of the recess 86, the outer side of which latch is exposed and disposed to be engaged by the trough of the bifurcated end 34 of. the bar .35. Thus whenever the control lever 58 is actuated to in turn move the bar 66 so as to raise the pin 32, and thereupon the locking bar 35 withdrawn to release the extension 30 and latch 85, the latch 85 will in to engage the enlargement 76 and maintain the pm 32 in raised osition, see Fig. 7, and thereupon when the ront end of the trailer is raised to remove it from the tractor 11, the brake bands on the trailer wheels will be anchored in braking position. To release such brake bands while the trailer is removed from the tractor it would, of course, only be necessary to first actuate the latch and, permit the pin 32 to descend. On the other hand, if this is not desired, it would only be necessary to return'the extension 30 into the central portion 29 of the spider 25, then u on the in: sertion of the locking bar 35,- t e en age ment thereof with the extension 30, as s own in Fig. 6, will actuate the latch 85 to permit the pin 32 to descend. 7

'It will be obvious that ower operated means other than brake mec anism may be mounted on the trailer to be controlled from the tractor, which mechanism will not be disturbed by relative movement of the tractor and trailer vehicles, without departing from the scope of this invention and we desire, therefore, 'not to be limited in the anism various changes may be made in the details of constructidns and arrangement of parts herein illustratedv and described without departing from our invention.

We claim:

1. The combination with a tractor and a trailer, of means for pivotally connecting said trailer to said tractor, a brake for said trailer, means on'said tractor for operating said brake, and connections, including a rigid member passing through and reciprocable on the axis of said pivotal connection, extending from said brake-operating means to said trailer brake for actuating said brake, whereby said brake may by the move members, means for pivotally connecting said other vehicle member to said pivotal member abouta vertical axis, a bar recip' rocablymounted through said horizontal axis and having a cam operatively mounted thereon, a pin reciprocabl mounted through said vertical axis and cooperating with said cam, brakes on the wheels of one of said vehicle members and operatively connected to said bar and pin, control means on the other of said vehicle members to actuate said bar and pin to in turn actuate said brakes, an enlargement on said pin, a latch cooperating with said enlargement to retain said pin in braking position when the vehicle members are separated, and means for'anchoring said vehicle members in pivotal re-- lation to one another about said vertical axis when disposed in anchoring position, cooperating with said latch to retain said latch in non-braking position.

18. The combination with two vehicle members mounted on wheels respectively, an extension on one of said vehicle members, means for receiving said extension on the other of said vehicle members, a pin reciprocably mounted in said extension, brakes on the wheels of one of said vehicle members operatively connected to said pin, control means on the other of said vehicle members operatively connected to actuate said pin to in turn actuate said brakes, an enlargement on said pin, and a latch disposed in said ex-.

tension and cooperating with said pin to retain the same in braking position when said vehicle members are separated. v

19. The combination with two vehicle members mounted on wheels respectively, an extension on one of said vehicle members, means for receiving said extensionon the other of said vehicle members, a pin reciprocably mounted in said extension, brakes on the wheels of one of said vehicle members operatively connected to said pin, control means on the other of said vehicle members operatively connected to actuate said pin to in turn actuate said brakes, an enlargement on said pin, a latch disposed in said extension and cooperating with said pin to retain the same in braking position when said vehicle members are separated, and anchoring means on said receiving means for cooperating with said extension to anchor said vehicle members in pivotal relation to one an other, said anchoring means when disposed in anchoring position cooperating with said latch to retain the same in non-braking .position. o

20. The combination with two vehicle members mounted on wheels respectively, an extension on one of said vehicle members, means for receiving said extension on the other of said vehicle members, there being an opening in said extension, a pin conforming to said opening 'reciprocably mounted 21. The combination with two vehicle members mounted onwheels respectively, an

extension on one of said vehicle members,

means for receiving said extension on the other of said vehicle members, there being an opening in said extension, a pin conforming to said opening reciprocably mounted thereon, an enlargement at the upper end of said pin to cooperate with said extension to limit the downward movement of said pin, brakes on the wheels of one of said vehicle members operatively connected to said pin, control means on the other of said vehicle members operatively connected to actuate said pin to in turn actuate said brakes, there being a recess in said extension, a latch rockably mounted therein and cooperating with said enlargement, and a spring for actuating said latch toretain said pin in braking position when the vehicle members are separated from one another.

22. The combination with two vehicle members mounted on wheels respectively, an extension on one of said vehicle members, means for receiving said. extension on the other of said vehicle members, there being an opening in said extension, a pin conforming to said opening reciprocably mounted therein,.an enlargement at the upper end of said pin to cooperate with said extension to limit the downward movement of said pin, brakes on the wheels of one of said vehicle members operatively connected to said pin, control means on the other of said vehicle members operatively connected ,to actuate said pin to in turn actuate said brakes, there bein a recess in said extension, a latch rockably mounted therein and cooperating with said enlargement, a spring for actuating said latch .to' retain said pin in braking position '-hicle members, means for'pivotally connecting'the vehicle members to one another, a bar reciprocably mounted through the horizontal axis of said pivotal member, brakes for the wheels of one of said vehicle members, connecting means for operatively con- 1,soo,oos

posed in anchoring position retaining said reciprocable member retaining means out of retaining position.

11. The combination with two vehicle members mounted on wheels respectively, a memberpivotally mounted about a horizontal axis and disposed on one of said vehicle members, an extension on the other of said vehicle members, there being-an opening in said pivotal member to receive said extension thereby to pivotally connect said vehicle members about a vertical axis, anchoring 'meanson said pivotal member to engage said extension to anchor said vehicle members in pivotal relation to one another about said vertical axis, a member reciprocably mounted in said extension, brakes on the wheels of one of saidvehicle members, means for'connecting said brakes to said reciprocable member, and control means on the other of said vehicle members operatively connected to actuate said reciprocable memher to in turn actuate said brakes.

v 12.'11he combination with two vehicle members mounted on whels respectively, a member pivotally mounted about a horizontal axis and disposed on one of said vehicle members, anextension on the other of said vehicle members, there-being an opening in said ivotal member to receive said extension t ereby to pivotally connect said vehicle members about a vertical axis, anchoring means on said pivotal member to engage said extension to anchor said vehicle members in pivotal relation to one another about said vertical axis, a member reciprocably mounted in said extension, brakes on the wheels of one of said vehicle members, means for 'connecting said brakes to said reciprocable member, control means on the other of said vehicle members operatively connected to actuate said reciproca' le member to in turn actuate said brakes, and means for retaining said reciprocable member in braking position,

13. The combination with two vehicle members mounted on wheels respectively, a member pivotally' mounted about a horizontal axis and disposed on one of said vehicle members, an extension on the other of' said vehicle members, there being an opening in said pivotal member to receive said extensi on thereby to pivotally connect said vehicle members about a vertical axis, anchoring means on said pivotal member to enga c said extension to anchorsaid vehicle mem ers in pivotal relation to one another about said vertical axis, a member reciprocably mounted in said extension, brakes on thewheels of one of said vehicle members, means for connecting said brakes to said reciprocable member, control means on the other of said vehicle members operatively connected to actuate said reciprocable member to in turn actuate said brakes, and means for retaining said reciprocable member in braking position when said vehicle members are separated from one another, said anchorlng means when disposed in anchored position retaining said reciprocable member retaining means out of retaining position.

14. The combination with two vehicle members mounted on wheels respectively,

cable member, brakes on the wheels of one of said vehicle members and operatively connected to said reciprocable members, and control means on the other of said vehicle members operatively connected to actuate said reci rocable members to in turn actuate saidg rakes.

12. The combination with two vehicle members mounted on wheels respectively, a member pivotally mounted about a horizontal axis disposed on one of said vehicle members, means for pivotally connecting said other vehicle member to said pivotal member about a vertical axis, a bar reciprocably mounted through said horizontal axis and having a cam operatively mounted thereon, a pin reciproc ly mounted through said vertical axis and cooperating with said cam, brakes on the wheels of one of said vehicle members andoperatively connected to said bar and pin, and control means on the other of said vehicle members to actuate said bar and pin to in turn actuate said brakes.

16.-'The combination with, two vehicle members mounted on wheels respectively, a member pivotally mounted about a horizontal axis disposed on one of said vehicle members, means for pivotally connecting said other vehicle member to said pivotal member about a vertical axis, a bar reciprocably mounted throughsaid horizontal axis and havinga cam operatively mounted thereon, a pin reciprocably mounted through said vertical axis and cooperating with said cam, brakes on'the wheels of one of said vehicle members and operatively connected to said bar and pin, control means on the other of said vehicle members to actuate said bar and necting said brakes with said bar, a bellcrank lever pivotally mounted onthe vehicle member on which said pivotal member is disposed, and operatively connected to said bar, a control lever pivotally mounted on said last-mentioned vehicle member, and a connecting rod connecting said control lever withsaid bell crank lever so as to actuate said bar to in turn actuate said brakes.

24. The combination with a tractor, of a member pivotally mounted about a horizontal axis and disposed on said tractor, a trailer, means for pivotally connecting said tractor to said trailer, a bar reciprocably mounted through the horizontal axis of said pivotal member, brakes for the wheels of said trailer and tractor, connecting means for operatively connecting the brakes of said trailer with said bar, a bell crank lever pivotally mounted on said tractor and operatively connected to said bar, a control lever mounted on said t'actor, a connecting rod connecting said control lever with said bell crank lever so as to actuate said bar to in turn actuate the brakes of said trailer, and means connecting the brakes of said tractor with said rod so as to simultaneously actuate the brakes of'said tractor. v

25. The combination with a tractor, of a member pivotally mounted about a horizontal axis and disposed on said tractor, a trailer, an extension on said trailer, receiving means on said pivotal member to receive said extension, means for anchoring said extension to said pivotal member to thereby anchor said tractor and trailer to one another in pivotal relation, a pin reciprocably mounted in said extension, a bar reciprocably mounted through the horizontal axis of said pivotal member, control means on said tractor, means for operatively connecting said control means With said bar, brakes on the wheels of said trailer, means for operatively connecting said pin to said brakes, a cam device on said bar, and a block mounted to be actuated by said cam and disposed to engage said pin so that the actuation of said control means will in turn actuate said brakes. 26. The combination with a tractor, of a member pivotally mounted about a horizontal axis and disposed on said tractor, a trailer, an extension on said trailer, receiving means on said pivotal member to receive said extension, means for anchoring said e'xtension to said pivotal member to thereby anchor said tractor and trailer to one an other in pivotal relation, a pin reciprocably mounted in said extension, a bar reciprocably mounted through the horizontal axis of said pivotal member, control means on said tractor, means for operatively connecting said control means with said bar, brakes on the wheels of said trailer, means for operatively connecting said pin to said brakes, a cam device on said bar, there being parallel slots in said pivotal member, a pin slidably mounted in said slots, and a block on said pin and anchored to said bar to be actuated by said cam face to in turn actuate said pin so that the actuation of said control means will in turn actuate said brakes. 27. The combination with a tractor and a trailer, an extension on said trailer, means for receiving said extension on said tractor, there being an opening in said extension, a pin conforming to said opening reci rocably mounted therein, brakes on the whee s of said trailer, control means on said tractor opera tively connected to actuate said pin, a bell crank lever 'pivotally mounted on said trailer one arm of said bell crank lever cooperating with the upper end of said pin to be actuated thereby, a cross rod operatively connected to said brakes, levers on which said cross rod is mounted, and a connecting rod connecting the other arm of said bell crank lever with saidcross rod so that the actuation of said control means will in turn actuate said b 'akcs.

ILIFFORD S. PEETS. ORLANDO D. SHONNARD. 

